There are two types of tabs in the Media Browser in PowerPoint for Mac. The first type comprises those tabs that show media content within some designated folders on your computer (such as the Photos, Audio, and Movies tabs). The other three tabs (Clip Art, Symbols, and Shapes) show media content that’s part of the Microsoft Office collection. The Clip Art tab provides the quick and easy way in which you can browse Office 2011’s Clip Art collection. The other option to access the Clip Art is through the Clip Gallery.